I create a z/OS UNIX Subproject and associate it with a target environment who has a Build mechanism configured as JCL Submit.
Then I right click project and select Build and I will see below message in Remote Console view:
TPFR6154E - Cannot find the configuration for the system CTFMVS08.RTP.RALEIGH.IBM.COM in the configuration file.

I searched info center and found below link which says <install location>\Config\host must exist to support JCL Submit, but I can't find the folder under my RDz installation path.